Flashing ATEC codes -726250101

TM 9-2320-364-34-1

TRANS

CHECK

(6)

Flashing ATEC codes. ATEC troubleshooting procedures are designed to be performed with the DDR. In

situations where a DDR is not available, ATEC codes can be read by flashing them on the "TRANS

CHECK" light. If "TRANS CHECK" light does not flash, no faults have been detected by ATEC since

the last time the codes were cleared. For example, codes 13 and 23 will be flashed as follows:

(a)

Turn OFF ENGINE switch (TM 9-2350-364-10).

(b)

Place a jumper wire between terminals A and B on DDL connector MC13.

(c)

Start engine, observe the "TRANS CHECK" light and record the codes being flashed.

(d)

The "TRANS CHECK" light will flash once for the one in the number 13 and pause for about a half

a second.

(e)

Then the "TRANS CHECK" light will flash three times for the three in the number 13 and pause for

about three seconds.

(f)

After the three second pause, the "TRANS CHECK" light will flash two times for the two in the

number 23 and pause for about a half a second.

(g)

After the half second pause, the "TRANS CHECK" light will flash three times for the three in the

number 23.

(h)

The "TRANS CHECK" light will continue to flash in this manner until all of the ATEC codes in the

ATEC ECM memory are displayed.

(i)

Turn OFF the ENGINE switch when all of the ATEC codes are flashed.

(j)

Remove the jumper wire.

(k)

Proceed to ATEC Troubleshooting (TM 9-2320-364-20) and the first code flashed by the "TRANS

CHECK" light.

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